Metallic-gar construction



I No. 750,049.

, PATENTED JAN. 19,-1904. 0; M. CARNAHAN. METALLIC GAR CONSTRUCTION.

APPLICATION FILED APR.17. 1902.

3-SHEETS-SHEBT 1.

N0 MODEL.

PATENT-ED JAN. 19, 1904.

0. M. GARNAHAN. METALLIC CARGONSTRUGTION;

APPLICATION FILED APR.1'47,1902.

a SHEETS-SHEET 2.

110 MODEL.

Lula- .5106] m: nomus Pznms cu. wumaumb wnsumcmm n. c.

PATENTBD JAN. 19, 1964.

0. M. CARNAHAN. METALLIC GAR CONSTRUCTION.

APPLICATION FILED A1117. 1902.

N0 MODEL. 1

3 SHEETS-SHE}?! 3.

UNITED STATES Patented January 19, .1904.

PATENT OFFICE.

CYRUS M. OARNAHAN, OF ALLEGHENY, PENNSYLVANIA, ASSIGNOR. TO.

NATIONAL ROLLED STEEL CAR COMPANY, OF PITTSBURG, PENNSYL- VANIA, A GORPORATIONTOF NEW JERSEY.

METALLIC-GAR CONSTRUCTION.

SPECIFICATION forming part of Letters Patent No. 750,049, dated January 19, 1904.

Application filed April 17, 1902. Serial No. 103,262. (No model.) i

To all whom it may concern:

Be it known that I, CYRUS M. CARNAHAN, a citizen of the United States, residing at Allegheny, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Metallic-Car Construction, of which the following is a specification, reference being had therein to the accompanying drawings, forming part of this specification, in which Figure 1 is a view in side elevation of my improved car-frame. Fig. 2 is a similar view showing theunderframe alone without any superstructure. Fig. 3 is a detail sectional I 5 view of the end framing. Fig. 4 is a plan View of Fig. 1. Fig. 5 is a cross-sectional view,onan enlarged scale, indicated by the line V V of Fig. 1. Fig. 6 is a detail sectional view showing a metal side plate. Fig. 7 is a fragmentary plan view of a portion of the underframing, showing the arrangement of the side and center sills and connecting cross-sills. Fig. 8 is a partial side elevation similar to Fig. 1, showing the superstructure framing 2 5 of a box-car. Fig. 9 is a cross-sectional view through the underframe, showing the construction of body-bolster indicated by the line 1X IX of Fig. 2. Fig. 10 is a cross-sectional view illustrating the superstructure frame- 3 work of a box-car indicated by the line X X of Fig. 8. Fig. 11 is a plan view, partially in section, of one end of the car, illustrating the arrangement of the draft-rigging.

My invention refersto an improved construction in metallic cars, and refers more particularly to the construction ofthe under: framing or bottom structure and to the superstructure framework incorporated therewith.

The invention has in View the cheapening,

4 strengthening, and simplifying in construction of what are known as steel cars, more particularly flat-bottom,platform, gondola, or box cars, by the use of standard rolled sections of structural steelsuch as channels, Z-bars,

angles, &c.-with members comprising the elements of the framing structure incorporated together for the purpose and in the manner hereinafter described.

The invention is designed to provide an underframe metallic structure with which may 5 be incorporated a floor of either metal, as plates, or of wood or other'suitable material laid over the underframe and secured thereto as channels or Z-bars, adapted to provide top 5 bearing-surfaces for the floor-framing, while the Webs provide good attaching-faces for the cross framing members midway of the main framework running longitudinally for the full length of the car and assembled in close 7 relation to each other and with suiiicient intervening space to receive the draw-heads 3, with their accompanying draft-gear, at each end. On each side on corresponding levels with the center sills are the side sills 4: of suitable structural shape, as channels or, Z-bars, the flanges and webs of which provide good bearing andattaching faces for the superstructure floor and cross framing members, and with the center and side sills are incorporated the end sills 5, likewise of similar structural members, incorporated with the side and center sills by suitable angle-brackets riveted to each other, so as to secure the parts together in the manner customary in structural work. Across 5 the ends of the foundation structure from side to side above and below and secured to the center and side'sills are the reinforcing end sill members 6 6 of suitable form, as channels, which serve to bind these parts securely to 9 gether, giving a finished appearance,- the upper one of such members providing an end platform for the car. Extending across the underframing structure at suitable intervals between the side and center sills to provide good bearing-supports for the floor structure are the floor-beams 7 of structural shape, as channels, beams, or Z-bars, likewise incorporated with the side and center sills by suitable angle brackets or other means, the upper flanges of which floor-beams are preferably flush with the upper surfaces of the side and center sills. This construction provides a foundation structure, and for the purpose of further supporting it and the superimposed load I have provided longitudinal truss-rods 8, connected at each end to the side sills in any suitable manner, depressed at their middle portion, and passed under the ends of a cross supporting-bolster9,extcndingmidway of the tended upwardly to a suitable height, as shown framing structure underneath from side to side, as shown in Fig. 2. The body-bolsters are located underneath the framing structure at each end in proper position to provide truckbearings in the usual manner, and while various forms of bolsters may be utilized with the car-body I have employed upper and lower structural members, as channels 10 11, arranged in diamond form, passing over and under the center sills, incorporated with truckbearings 12 and brought together at the ends and connected by rivets or bolts and brackets 13 to the side sills 4, as shown in Fig. 8. At intervals truss-rods 14 extend across underneath the center sills, engaging shoes 15, secured thereto, and are connected with the side sills in any suitable manner, thus providing lateral strengthening and supporting tension members by which the load is further supported in the center. The center sills are preferably connected at intervals or for their full length either below and above. or both, by any suitable means, as lattice-work or longitudinal plates or angles 16, as shown in Fig. 5, or by suitable cross-braces wherever necessary. Upon such underframing or platform structure the floor 18, of wood, may be laid,

suitable stringers or joists 19 being first laid, if desired, along the top of the side and center sills and over the cross-sills 7, or the floor may be of metal plates laid upon the side, center, and cross sills.

For the purpose of providing a superstructure framework post members 20 and 21 of channel or other suitable form are secured at the corners to the side and end sills, as shown, while on each side at the middle and above the body-bolsters are post members 22 and 23, such corner and side posts being connected with upper longitudinal reinforcing members 24: of channel or other suitable shape. Similar post members 25 of plate or channels are erected on the inner sides of the bod y-bolster posts 23, secured to the side sills and incorporated with bolster-brackets 13, as shown in Fig. 8. and at their tops with the upper longitudinal members 24, While between such main posts on the inside are erected at intervals supplemental posts 26 of single or other form, which are joined with and serve to bind together the side sills and floor-beams at the of structural forms, as channels, bearing at the middle against the upper ends of posts 22 underneath the top member 24, sloping downwardly toward each end and bearing against the body-bolster posts 23, being secured to such upper and lower bearing members in any suitable manner.

hen it is desired to provide a box-car superstructure, the side members are merely exin Figs. 8 and 10, the opening 28 for the door being provided by employing two posts 22 at the middle on each side of a suitable space, the other construction being the same as has been just described.

The top of the car may be of any convenient constructior, and good results may be had by continuing the post members 26 across, providing roof-purlins 26, as shown in Fig. 9, or by securing supplemental roof-purlins to the tops of the various posts or members 24 and providing such other connecting or bracing devices as may be required in connection with the roof.

hen it is desired to utilize metallic plates for the sides and ends, such plates maybe conveniently secured to and between the outer posts and diagonal braces'and the inner posts, as shown at 29, Fig. 5. When it is desired to make the sides and ends of wood, as indicated at 30, Figs. 5 and 10, the siding is laid over the outer sides of the superstructure framework, being secured to strips 31, laid along the posts and brace members and secured therein by bolts countersunk in the wood.

It will thus be seen that means are provided in the framing structure throughout, includ ing the underframing, sides, and ends, for incorporating with it floors, sides, and ends of either metal or wood, and my improved carframework is therefore Well adapted to either type of car or to combinations of both types.

As thus constructed, my improved carframe is entirely composed of metal so incorporated as to provide simplicity and economy of construction with strength, durability, and adaptability to various forms or designs of upper construction. The foundation structure, the sides, and ends are well connected and braced, the strains are equally disposed throughout, the parts are few and simple in construction and erection and being composed of commercial rolled shapes avoid the necessity of complicated and expensive pressing and forming machinery,

Changes and variations may be made in the design, details, or other elements of the invention by the skilled mechanic; but all such changes are to be considered as within the scope of the following claims.

What I claim is- 1. In a metallic car, an underframe consisting of side sills, center sills, end sills and floorbeams of flanged structural members, the up: per flanges thereof conforming to a common floor-level, and reinforcing end sills of structural members for the full Width of the underframe extending above and below the top and bottom thereof, substantially as set forth.

2. In a metallic car, an underframe consisting of side sills, center sills, end sills and floor beams of flanged structural members, theup per flanges thereof conforming to a common floor-level, and reinforcing end sills of structural members for the full width of the underframe above the top thereof, means for securing the members together, a lower cross supporting-bolster, and truss-rods engaging the bolster and secured at each end to the side sills, substantially as set forth. 7

3. In a metallic car, an underframe consisting of side sills, center sills, end sills and floorbeams of flanged structural members, the up-,

.beams of flanged structural members, the upper flanges thereof conforming to a common floor-level, and reinforcing end sills of structural members for the full width of the underframeextending above the top, means for securing the members together, and transverse body-bolsters of structural members in engagement with the center sills and secured to the side sills, substantially as set forth.

5. In a metallic car, an underframe consisting of side sills of Z-bars having outWardly-.

extending upper flanges, center sills, floorbeams and end sills of flanged structural members, the upper flanges of said members conforming to a common floor-level, means for securing the members together, and reinforcing end sills of structural members for the full width of the underframe extending above the top thereof, substantially as set forth.

6. In a metallic car, the combination of side sills, center sills, end sills and floor-beams of flanged structural members, the upper flanges of said members conforming to a common floor-level, supplemental reinforcing end sills, post members for the sides and ends, and means for securing the members together, substantially as set forth.

7 A metallic car consisting of side sills,

center sills, end sills and floor-beams of flanged,

structural members, the upper flanges of said members conforming to a common floor-level, supplemental reinforcing end SlllS, post members for the sides and ends and sides and ends of plates secured thereto, substantially as set forth.

8. In car construction, an underframe com posed of center sills 0f flanged structural members, side sills of Z-bars having outwardly extending upper flanges, floor-beams and end sills of flanged structural members, the upper flanges of said members conforming to a common floor-level, post members for the sides and ends, and means for securing the members extending upper flanges, floor-beams and end sills of flanged structural members, the upper flanges of said members conforming to a common floor-level, post membersfor the sides and ends, top members for the sides and ends,

diagonal side-bracing members, and means for securing the memberstogether.

'11. In car construction, an underframe composed of center sills, side sills having outwardly-extending upper flanges, floor-beams and end sills of flanged structural members, the upper flanges of said members conforming to a common floor-level, inner and outer post members incorporated with the side sills and floor-beams, and means for securing the members together.

12. In a car construction, an underframe composed of center sills, side sills, floor-beams and end sills of flanged structural members, the upper flanges of the said members conforming to a common level, body-bolsters of structuralmaterial, inner post members inand inner and outer post members connected IOO corporated with the side sills and bolster ends, 1

with the floor-beams and sidesills, with means i for securing the members together.

13. In car construction, an underframe com-.

posed of center sills, side sills, floor-beams and end sills of flanged structural members,

the upper flanges of said members conforming .to a common floor-level, angle-brackets connecting the floor-beams and end sills with the side and center sills, and reinforcing upper and lower end sills secured to the side and center SlllS. g V,

14. In car construction, an under-frame, composed of center sills of flanged structural members, side sills 0f Z-bars having outwardlyextending upper flanges, fl0or-beams and end sills of flanged structural members, the upper flanges of said members conforming to a common floor-level reinforcing end sills extending upwardly therefrom, and a floor structure laid over and supported by the side, center and cross sills and floor-beams, respectively.

15. In car construction, an underframe composed of center sills of flanged structural members, side sills of Z-bars having outwardlyextending flanges, floor-beams and end sills of flanged structural members, the upper flanges of said members conforming to a common floorlevel reinforcing end sills extending upwardly therefrom, post members for the sides and ends, a floor structure, and sides and ends incorporated with the said framework, and means for securing the parts together.

In testimony whereof I aflix my signature in presence of two witnesses.

CYRUS M. CARNAHAN.

Witnesses:

J AS. J. MoArEE, C. M. CLARKE. 

